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Date: Wed, 28 Apr 2010 20:51:30 -0500
From: Eric Sandeen <sandeen@sandeen.net>
MIME-Version: 1.0
Subject: Re: Enabling lazy counters damages filesystem
References: <4BD84771.4030804@mejor.pl> <20100428230447.GJ9783@dastard>
	<20100429014312.GA2512@dastard>
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To: Dave Chinner <david@fromorbit.com>
Cc: =?UTF-8?B?TWFyY2luIE1pcm9zxYJhdw==?= <marcin@mejor.pl>, xfs@oss.sgi.com

Dave Chinner wrote:

...

> Actually, 3.1.0 was the first release with the fix to xfs_db that
> prevents this problem.
> 
> Cheers,
> 
> Dave.

not so sure:

# rpm -q xfsprogs
xfsprogs-3.1.1-7

# mkfs.xfs -dfile,name=fsfile,size=10g -llazy-count=0
meta-data=fsfile                 isize=256    agcount=4, agsize=655360 blks
         =                       sectsz=512   attr=2
data     =                       bsize=4096   blocks=2621440, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0
log      =internal log           bsize=4096   blocks=2560, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=0
realtime =none                   extsz=4096   blocks=0, rtextents=0

# xfs_admin -c 1 fsfile 
Enabling lazy-counters

# xfs_check fsfile 
sb_features2 (0xa) not same as sb_bad_features2 (0x8)

# xfs_repair fsfile 
Phase 1 - find and verify superblock...
superblock has a features2 mismatch, correcting
writing modified primary superblock
...

-Eric

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